Home / 20,302,311.12-28,017,405-11,009,899.32

Finding the Fourth Proportional to 20,302,311.12, 28,017,405 and 11,009,899.32

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Solution

The fourth proportional to 20,302,311.12, 28,017,405 and 11,009,899.32 is: 15,193,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302,311.12 : 28,017,405 = 11,009,899.32 : x
  2. Step 2: Convert to fraction form
    20,302,311.12/28,017,405 = 11,009,899.32/x
  3. Step 3: Cross multiply
    20,302,311.12x = 28,017,405 × 11,009,899.32
  4. Step 4: Simplify right side
    20,302,311.12x = 308,468,808,257,664.62
  5. Step 5: Solve for x
    x = 308,468,808,257,664.62/20,302,311.12
  6. Step 6: Final answer
    x = 15,193,778.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.